Tenants opposed to the social cleansing of city centres will protest outside an auction at a luxury hotel where property developers and private landlords will bid for £7.2m worth of former social flats and houses.

Nearly one in 10 of the lots, which are being auctioned by leading estate agent Savills at the Marriott hotel in London’s Grosvenor Square on Monday, are former social housing, with 14 lots being sold by housing associations and six by councils.

They include three housing association flats in Croydon, two housing association flats in Camberwell and a housing association house in Harlesden. These three areas have more than 7,000 families in temporary housing and 104 people sleeping on the streets, according to the most recent government figures.